US971456A - Road-culvert. - Google Patents

Description

y use-fnl improvements in lIoad-Cnlverts, of

inter enlxerts roin|ni -e a pair offsenii-oylin-` drirztl Section the longitud: al sides of.

j ot'l the enlvert tations hy rivets is -bjeetionahle tor the reaaon that. it involves con- `snleralili; tune and is onljt` nti'eoniplished at the production ot' :ldevice provided with .menne for ehunping the sides of theseet'ions together and wheurf.) clamped to be pmi- `tively held against aceidental diengage- *nothing to thtl cost ot' sectional enlverts now j and minor detail 0i' the device may he made.

" 'UNiirEn eineensv Vintrnist-fr oFEioE. g

ROAD-CULVERT.

t-VILLIAitP. Looitnii.;y 0F PURTLAND, OREGON.

f kSpecification of Letters Patent. Pun {ci} tcd S( 'Ii1.ff V 21's, 19ML Atiplcation tiled April 8v.` 1910. i Serial No. 554219. A* .t

To all -whmnit'may concern: y

Beit known thatVv lflViLLm. l". Loenen,v a citizen `ot" the lfnitetl States, residing atv Portland` in the munir of Mnltnonxah and l@tate ot ()regon have invented new and which the tollo\\'in;, r i a speeitifation. l

'this invention relates to improvements in road zrnlverts and more particularly to that', type of road cnlverts known as nesting' enlverte,` 1 .'.f 1 It is well-knmvn that the lriual road neetwhieh are riveted or otherwie secured hetnre orai'ler the eulvert ha leenplaced in position. The method ot Joining the Sides :xn increased cost. u Y

The yprt-sentinvention therefore aims at;

inuit. l

A further ultiem is the, pro\'i;-iou of a con- .strnr-tion wlnvh will add roniparatively in use.v v

With these and Aother ohjerts in View, which will more fully hereinafter appear, the present invention consi in certain nov'el details ot' Construction and arrangement of parts, hereinafter fully described. illustrated in the arcomt'ianyingr,drawings and more .partieularly pointed ont in the :rppended eluims; it. being' understood that: vnrionsl changes:v in the forni, iropihtion, '.Qize,

The culvert Set-tions are designated respetjrtively bj' the numerals 5 and t, and are eheh preferably formed of a single piece of hsheet metal :tud are-substantially arcuate or .senii-CviindrienlV incross set-tion. so that when hronggjhttogether with their longitu- (linut Sides tieni-irgone upon fthe other a eir-l t 'l enlnr opening will-he presented.

A@ Shown in the'ilrawings the sections are f torinelot eorrug'ated sheet lnetnh ,lt must;

he limiet-.stood however that l ain not to he .limited tothe spefitie. employment-of corrugated metal. ainceit wilhhe understood, from what will appear later, how the device might he equally :is well constructed of seetions with Smooth snrt'ures.

By referenre to the drawings it will lie seen that the section is pro iided for the greater portion of its length with what will subeeqnently be termed a pair of clamping strips designated by the numerals' and 8. These members are preferably formed of sheel metal and may he corrugated or smooth according to the section to whih the7 are. to be applied. The clamping' strips 7 and S are secured to the outer face of the.

'section a1nl.;ulja 1eixt to the longitudinal edges thereof. The strips 7 and S Correspond approxinnitely in length to the section 5 and*are-relatively narrow and secured to the section 5 hy virtue oti rivets other suitable fastening inean. B v reference now to thetdrawings it will he seentluxt the strips are so positioned that their outer longitudinal sides will extend considerably in ath-'ance of the longitudinal sides of the sec tion 5, and at the longitudinal centers, the strips arer offset as shown at 10, whereby Sockets ll are formed between the inner faces of the otlaet portions and Outer tace of the Section which these ollnet portions overlie. lt might here he stated that the long-itiulinal central line of each strip is positioned a slight distance from the adjacent side edge of the section 5. The Sockets ll are ot' Snltieient width to receive the opposite side portions of the opposite Sei-tion .6. when the said Sides are brought into alinernent with the socket?, and the sections brought together until the shonliflers formed bv the. oisets 10 ahnt with the longitudinal edges of the section (i. It will be Seen when the parts are so positioned thaty the Sections `.vill be locked together and a circular open ing presented. V

In order to prevent accidental displacerient of the sectons after they have been united in the manner just describedthe folow-ing construction is employed: By reference now to the drawingsit will'be seen that ormed at spaced intervals on the portions of the clam ing strips 7 spaced from the section 5 a'n adjacent to the outer edges of these strips arey oblong slots'v12 and formed on the outer surface and adjacentto theopposite sides of the section 5' are spurs or teeth 13. AThe. Aupper sideszof the spurs or teeth 125 incline toward theedgeof the section so that when the sections arc 'being forcedti'nto engagement with each other, by virtue of the inclined sides,` no obstructions will bc presented toy prevent the edges of the sections G from ycntcring'the socketsill. rI`he teeth'l'3 arc 'so positioned with respectto theopenings 12 that during the operation of orcing the sections into`engagcmentwth each other the slant sides of these teeth will force the clamping` strips 7 and 8 outwardly until the edges of the section G abut with the shoulders formed by the oifsets 10, when the ends of the teeth will be in `alincn'lent with the oblong slots 12 whereby the outer sides of these slots will engage with the ends of the teeth and prevent outward movement of the section 6 from the sockets 11.

In the modiied'form shown in FigJS the sections 14 .and 15 are identical to the sections just. :described` The diiterence oetween the structures residing in the dis osition of the strips 16 and 17 which instead ofbeing located -on one sectiqpv as shown in I"igs.'1 and 2, are locatedat lone side of each section.,r In some instances this `structure may be preferred to that shown in Figs. 1 and 2 and if desired the edges of these strips need4 not extend beyond a point in alinement with the edges of the sections to which they are secured, The stripsr 16 and 17-are provided with openings, similar to the openings 12 and one of which is shown in Fig. 3 and designated by the numeral 18, these openings receiving the spurs of teeth 19 in the manner before described.

Thus it will be seen that I have rovdedV tween the said stripsand rst-nained section and providedv with teeth to ings of the said stri s. Y

A In 'a .nestablc culvert, an oblong semicylindrical section, apair of oblong stri s secured adjacent to the opposite sides of said section. and having oii'setporticns spacedv froml the (interface named Vscnii-cylixulrical' section having its opposite side portion inscrtible into the space between the offset portions of said strips and first-named section, andineans y forautomatically locking the two sections together. 3. In a nestablc culvert, a cylindrical pipe formed oftwo sections, one of which hasa enter the open recess along one of the longitudinal edges thereof, and means for automatically locking one of thek longitudinal edges'of the oppositc section thereto; n f y 4, A nestable. culvert comprising a pairof sections one of which has a marginal Asocket to receive a'n adjacent edge portion of the other section, and coperatin device arranged on both sections serving to automatically lock .the sections when the* same are brought together. y In testimony whereof I afiixmy' signature in presenceof two witnesses.

` W'ILLIAM F. LOOKER. v lVitnessem e A. C. CURNow,

S. A. MCCARTNEY.

thereof,.and a second

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